From: Roel Kluin Date: Tue, 17 Nov 2009 22:39:06 +0000 (-0800) Subject: OMAP: cs should be positive in gpmc_cs_free() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e7fdc6052e78738ce90e0bdc051f2ddf60e41324;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git OMAP: cs should be positive in gpmc_cs_free() The index `cs' is signed, test whether it is negative before we release gpmc_cs_mem[cs]. Signed-off-by: Roel Kluin Cc: Russell King Signed-off-by: Tony Lindgren Signed-off-by: Andrew Morton --- diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index f8657568b1b..f3c992e2965 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -378,7 +378,7 @@ EXPORT_SYMBOL(gpmc_cs_request); void gpmc_cs_free(int cs) { spin_lock(&gpmc_mem_lock); - if (cs >= GPMC_CS_NUM || !gpmc_cs_reserved(cs)) { + if (cs >= GPMC_CS_NUM || cs < 0 || !gpmc_cs_reserved(cs)) { printk(KERN_ERR "Trying to free non-reserved GPMC CS%d\n", cs); BUG(); spin_unlock(&gpmc_mem_lock);