Commit e7fdc605 authored by Roel Kluin's avatar Roel Kluin Committed by Tony Lindgren
Browse files

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: default avatarRoel Kluin <roel.kluin@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Tony Lindgren's avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent d32b20fc
......@@ -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);
......
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