From 4b402e3a54a46505692ec8215231e2ede46a4aeb Mon Sep 17 00:00:00 2001 From: Graf Yang Date: Mon, 20 Apr 2009 09:20:58 +0000 Subject: 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 Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/mm/isram-driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/blackfin/mm') 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); -- cgit v1.2.3-58-ga151