cris:Check kmalloc return value before use data
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From: Mikael Starvik on 18 May 2010 05:10 Sure, if you feel like its worth it. If we can't allocate one page of data in an init function we are probably up for more problems soon... Signed-off-by: Mikael Starvik <starvik(a)axis.com> -----Original Message----- From: Steven Liu [mailto:lingjiujianke(a)gmail.com] Sent: den 18 maj 2010 08:26 To: Mikael Starvik; Jesper Nilsson; linux-kernel(a)vger.kernel.org; linux-cris-kernel; liuqi(a)thunderst.com Subject: [PATCH] cris:Check kmalloc return value before use data Check kmalloc return value before use data Signed-off-by: Liu Qi <lingjiujianke(a)gmail.com> --- arch/cris/arch-v32/kernel/signal.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c index 0b7e3f1..dd69fb4 100644 --- a/arch/cris/arch-v32/kernel/signal.c +++ b/arch/cris/arch-v32/kernel/signal.c @@ -656,6 +656,9 @@ int __init cris_init_signal(void) { u16* data = kmalloc(PAGE_SIZE, GFP_KERNEL); + if(!data){ + printk(KERN_ERR "kmalloc memory failed in %s \n", __func__); + return -ENOMEM; + } /* This is movu.w __NR_sigreturn, r9; break 13; */ data[0] = 0x9c5f; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |