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powerpc/fsl-lbc: Fix for fsl_upm

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If Freescale LBC driver fails to initialise itself from device tree, then
internal structure is freed only but not NULL-fied.  As result functions
fsl_lbc_find() after checking the structure is not NULL are trying to
access device registers.

Signed-off-by: Alexandre Rusev <arusev@dev.rtsoft.ru>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Alexandre Rusev
2011-11-24 02:00:42 -06:00
committed by Kumar Gala
parent 86f9a43305
commit 7145cf1209
1 changed files with 1 additions and 0 deletions
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arch/powerpc/sysdev/fsl_lbc.c
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@@ -328,6 +328,7 @@ static int __devinit fsl_lbc_ctrl_probe(struct platform_device *dev)
err:
iounmap(fsl_lbc_ctrl_dev->regs);
kfree(fsl_lbc_ctrl_dev);
fsl_lbc_ctrl_dev = NULL;
return ret;
}