commit 4b402e3a54a46505692ec8215231e2ede46a4aeb
author Graf Yang <graf.yang@analog.com> Mon Apr 20 09:20:58 2009 +0000
committer Mike Frysinger <vapier@gentoo.org> Fri Jun 12 06:03:45 2009 -0400
tree cd13adc01994653e496fd848fb0c150613d056f1
parent 5d89137a17ca804ee60077f5d4ad8d7ca60f0614

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>

arch/blackfin/mm/isram-driver.c

diff --git a/arch/blackfin/mm/isram-driver.c b/arch/blackfin/mm/isram-driver.c
index 22913e7..c080e70 100644
--- a/arch/blackfin/mm/isram-driver.c
+++ b/arch/blackfin/mm/isram-driver.c
@@ -125,7 +125,7 @@
 {
 	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);