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authorGraf Yang <graf.yang@analog.com>2009-04-20 13:20:58 +0400
committerMike Frysinger <vapier@gentoo.org>2009-06-12 14:03:45 +0400
commit4b402e3a54a46505692ec8215231e2ede46a4aeb (patch)
treecd13adc01994653e496fd848fb0c150613d056f1 /arch/blackfin/mm
parent5d89137a17ca804ee60077f5d4ad8d7ca60f0614 (diff)
downloadlinux-4b402e3a54a46505692ec8215231e2ede46a4aeb.tar.xz
Blackfin: fix bug found by traps test case 21
The traps test case 21 "exception 0x3f: l1_instruction_access" would make the kernel panic on BF533's because we end up calling show_stack() infinitely. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/mm')
-rw-r--r--arch/blackfin/mm/isram-driver.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/blackfin/mm/isram-driver.c b/arch/blackfin/mm/isram-driver.c
index 22913e7a1818..c080e70f98b0 100644
--- a/arch/blackfin/mm/isram-driver.c
+++ b/arch/blackfin/mm/isram-driver.c
@@ -125,7 +125,7 @@ static bool isram_check_addr(const void *addr, size_t n)
{
if ((addr >= (void *)L1_CODE_START) &&
(addr < (void *)(L1_CODE_START + L1_CODE_LENGTH))) {
- if ((addr + n) >= (void *)(L1_CODE_START + L1_CODE_LENGTH)) {
+ if ((addr + n) > (void *)(L1_CODE_START + L1_CODE_LENGTH)) {
show_stack(NULL, NULL);
printk(KERN_ERR "isram_memcpy: copy involving %p length "
"(%zu) too long\n", addr, n);