summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorArd Biesheuvel <ardb@kernel.org>2021-09-21 15:31:23 +0100
committerRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2021-10-19 10:37:34 +0100
commit00d43d13da6c3424101aebabefab9e97e6318bee (patch)
treeb4428cfc1f7db61cc2525ec766b57f969619bde7
parent9d417cbe36eee7afdd85c2e871685f8dab7c2dba (diff)
ARM: 9125/1: fix incorrect use of get_kernel_nofault()
Commit 344179fc7ef4 ("ARM: 9106/1: traps: use get_kernel_nofault instead of set_fs()") replaced an occurrence of __get_user() with get_kernel_nofault(), but inverted the sense of the conditional in the process, resulting in no values to be printed at all. I.e., every exception stack now looks like this: Exception stack(0xc18d1fb0 to 0xc18d1ff8) 1fa0: ???????? ???????? ???????? ???????? 1fc0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? 1fe0: ???????? ???????? ???????? ???????? ???????? ???????? which is rather unhelpful. Fixes: 344179fc7ef4 ("ARM: 9106/1: traps: use get_kernel_nofault instead of set_fs()") Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
-rw-r--r--arch/arm/kernel/traps.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 4a7edc6e848f..195dff58bafc 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -136,7 +136,7 @@ static void dump_mem(const char *lvl, const char *str, unsigned long bottom,
for (p = first, i = 0; i < 8 && p < top; i++, p += 4) {
if (p >= bottom && p < top) {
unsigned long val;
- if (get_kernel_nofault(val, (unsigned long *)p))
+ if (!get_kernel_nofault(val, (unsigned long *)p))
sprintf(str + i * 9, " %08lx", val);
else
sprintf(str + i * 9, " ????????");