From 5c56f32e80ac8ea9878a0a5eb9ca99c703e953ab Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Wed, 19 Jan 2011 15:57:22 +0300 Subject: [PATCH] OMAP: PM: SmartReflex: fix potential NULL dereference kzalloc() may fail, if so return -ENOMEM. Also Walter Harms suggested to use kasprintf() instead of kzalloc+strcpy+strcat. Signed-off-by: Vasiliy Kulikov Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/smartreflex.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c index 1a777e34d0c2..b57ae502e0c7 100644 --- a/arch/arm/mach-omap2/smartreflex.c +++ b/arch/arm/mach-omap2/smartreflex.c @@ -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) -- 2.20.1