Thread (4 messages) 4 messages, 3 authors, 2011-01-19

[PATCH] arm: mach-omap2: potential NULL dereference

From: walter harms <hidden>
Date: 2011-01-17 10:38:54
Also in: kernel-janitors, linux-omap, lkml


Am 17.01.2011 11:08, schrieb Vasiliy Kulikov:
quoted hunk ↗ jump to hunk
kzalloc() may fail, if so return -ENOMEM.

Signed-off-by: Vasiliy Kulikov <redacted>
---
 Cannot compile this driver, so it is not tested at all.

 arch/arm/mach-omap2/smartreflex.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index 77ecebf..871bca9 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -260,7 +260,10 @@ static int sr_late_init(struct omap_sr *sr_info)
 	if (sr_class->class_type == SR_CLASS2 &&
 		sr_class->notify_flags && sr_info->irq) {
 
+		ret = -ENOMEM;
 		name = kzalloc(SMARTREFLEX_NAME_LEN + 1, GFP_KERNEL);
+		if (name == NULL)
+			goto error;
 		strcpy(name, "sr_");
 		strcat(name, sr_info->voltdm->name);
 		ret = request_irq(sr_info->irq, sr_interrupt,
maybe it is more readable to use:
	kasprint(&name,"sr_%s",sr_info->voltdm->name);

re,
 wh
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