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Hendrik Brueckner c77f7cf74b [S390] hvc_iucv: do not call iucv_unregister if iucv_register failed 
If the iucv_register() functions fails, the error recovery calls
iucv_unregister() which might cause the following stack backtrace:

	(<0000000000100ab2> show_trace+0xee/0x144)
	<00000000004f1842> panic+0xb6/0x248
	<00000000001010a6> die+0x15a/0x16c
	<000000000011d936> do_no_context+0xa6/0xe4
	<00000000004f84dc> do_protection_exception+0x2e8/0x3a4
	<0000000000113afc> pgm_exit+0x0/0x14
	<00000000004e786e> iucv_unregister+0x5a/0x17c
	(<00000000004e785e> iucv_unregister+0x4a/0x17c)
	<000000000076de74> hvc_iucv_init+0x228/0x5dc
	<00000000001000c2> do_one_initcall+0x3e/0x19c
	<00000000007524a2> kernel_init+0x28e/0x404
	<0000000000105dd6> kernel_thread_starter+0x6/0xc
	<0000000000105dd0> kernel_thread_starter+0x0/0xc

Remove the call to iucv_unregister() and remove the goto label
as unregistering is the last step in the hvc_iucv initialization.
If iucv_register() fails, simply clean up hvc terminals and free
resources.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 		2010-10-25 16:10:17 +02:00
..
agp Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
hw_random llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
ip2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2010-10-22 19:59:04 -07:00
ipmi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
mwave Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
pcmcia Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
rio Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
tpm Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
xilinx_hwicap Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
.gitignore
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Kconfig add ttyprintk driver 2010-10-22 10:20:02 -07:00
Makefile add ttyprintk driver 2010-10-22 10:20:02 -07:00
amiserial.c tty: icount changeover for other main devices 2010-10-22 10:20:05 -07:00
apm-emulation.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
applicom.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
applicom.h
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bfin-otp.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
bfin_jtag_comm.c
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briq_panel.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
bsr.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
cd1865.h
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consolemap.c
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cp437.uni
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cs5535_gpio.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
cyclades.c tty: icount changeover for other main devices 2010-10-22 10:20:05 -07:00
defkeymap.c_shipped
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defkeymap.map
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digi1.h
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digiFep1.h
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digiPCI.h
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ds1302.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
ds1620.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
dsp56k.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
dtlk.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
efirtc.c
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epca.c
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epca.h
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epcaconfig.h
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generic_nvram.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
generic_serial.c
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genrtc.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
hangcheck-timer.c
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hpet.c
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hvc_beat.c
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hvc_console.c
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hvc_console.h
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hvc_irq.c
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hvc_iseries.c
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hvc_iucv.c [S390] hvc_iucv: do not call iucv_unregister if iucv_register failed 2010-10-25 16:10:17 +02:00
hvc_rtas.c
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hvc_tile.c
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hvc_udbg.c
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hvc_vio.c
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hvc_xen.c
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hvcs.c
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hvsi.c
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i8k.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
isicom.c
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istallion.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
keyboard.c
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lp.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
mbcs.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
mbcs.h
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mem.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
misc.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
mmtimer.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
moxa.c
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moxa.h
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mspec.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
mxser.c tty: icount changeover for other main devices 2010-10-22 10:20:05 -07:00
mxser.h
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n_gsm.c
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n_hdlc.c
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n_r3964.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
n_tty.c
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nozomi.c tty: icount changeover for other main devices 2010-10-22 10:20:05 -07:00
nsc_gpio.c
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nvram.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
nwbutton.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
nwbutton.h
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nwflash.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
pc8736x_gpio.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
ppdev.c drivers: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:04 +02:00
ps3flash.c
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pty.c tty: Remove __GFP_NOFAIL from tty_add_file() 2010-10-22 10:19:58 -07:00
ramoops.c
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random.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
raw.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
riscom8.c
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riscom8.h
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riscom8_reg.h
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rocket.c
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rocket.h
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rocket_int.h
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rtc.c
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scc.h
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scx200_gpio.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
selection.c
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ser_a2232.c
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ser_a2232.h
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ser_a2232fw.ax
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ser_a2232fw.h
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serial167.c
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snsc.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
snsc.h
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snsc_event.c
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sonypi.c
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specialix.c
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specialix_io8.h
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stallion.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
sx.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
sx.h
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sxboards.h
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sxwindow.h
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synclink.c tty: icount changeover for other main devices 2010-10-22 10:20:05 -07:00
synclink_gt.c tty: icount changeover for other main devices 2010-10-22 10:20:05 -07:00
synclinkmp.c tty: icount changeover for other main devices 2010-10-22 10:20:05 -07:00
sysrq.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
tb0219.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
tlclk.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
toshiba.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
tty_audit.c
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tty_buffer.c
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tty_io.c tty: Make tiocgicount a handler 2010-10-22 10:20:04 -07:00
tty_ioctl.c
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tty_ldisc.c
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tty_mutex.c
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tty_port.c
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ttyprintk.c add ttyprintk driver 2010-10-22 10:20:02 -07:00
uv_mmtimer.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
vc_screen.c vcs: invoke the vt update callback when /dev/vcs* is written to 2010-10-22 10:20:06 -07:00
viotape.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
virtio_console.c virtio: console: Disable lseek(2) for port file operations 2010-10-21 17:44:04 +10:30
vme_scc.c
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vt.c vcs: invoke the vt update callback when /dev/vcs* is written to 2010-10-22 10:20:06 -07:00
vt_ioctl.c
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