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OMAP: PM: SmartReflex: fix potential NULL dereference

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kzalloc() may fail, if so return -ENOMEM.  Also Walter Harms suggested
to use kasprintf() instead of kzalloc+strcpy+strcat.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Vasiliy Kulikov 2011-01-19 15:57:22 +03:00 committed by Kevin Hilman
parent 8743410d49
commit 5c56f32e80
1 changed files with 5 additions and 3 deletions
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8
arch/arm/mach-omap2/smartreflex.c
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@ -260,9 +260,11 @@ static int sr_late_init(struct omap_sr *sr_info)
if (sr_class->class_type == SR_CLASS2 &&
sr_class->notify_flags && sr_info->irq) {
name = kzalloc(SMARTREFLEX_NAME_LEN + 1, GFP_KERNEL);
strcpy(name, "sr_");
strcat(name, sr_info->voltdm->name);
name = kasprintf(GFP_KERNEL, "sr_%s", sr_info->voltdm->name);
if (name == NULL) {
ret = -ENOMEM;
goto error;
}
ret = request_irq(sr_info->irq, sr_interrupt,
0, name, (void *)sr_info);
if (ret)