diff options
| author | Takashi Iwai <tiwai@suse.de> | 2020-10-23 09:46:54 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-10-26 16:52:00 -0400 |
| commit | 594b6f7370a84ae7fd87e16e2e8560874a01d70c (patch) | |
| tree | 016457be10c77a2e8da72ee6481d9224cd9c0e02 /drivers/gpu/drm/amd/display/dc/gpio | |
| parent | 44ea03e17ef5ca4a5f527ffbb26c57d16758bac9 (diff) | |
| download | linux-stable-594b6f7370a84ae7fd87e16e2e8560874a01d70c.tar.gz linux-stable-594b6f7370a84ae7fd87e16e2e8560874a01d70c.tar.bz2 linux-stable-594b6f7370a84ae7fd87e16e2e8560874a01d70c.zip | |
drm/amd/display: Fix kernel panic by dal_gpio_open() error
Currently both error code paths handled in dal_gpio_open_ex() issues
ASSERT_CRITICAL(), and this leads to a kernel panic unnecessarily if
CONFIG_KGDB is enabled. Since basically both are non-critical errors
and can be recovered, drop those assert calls and use a safer one,
BREAK_TO_DEBUGGER(), for allowing the debugging, instead.
BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=1177973
Cc: <stable@vger.kernel.org>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/gpio')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c b/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c index f67c18375bfd..dac427b68fd7 100644 --- a/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c +++ b/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c @@ -63,13 +63,13 @@ enum gpio_result dal_gpio_open_ex( enum gpio_mode mode) { if (gpio->pin) { - ASSERT_CRITICAL(false); + BREAK_TO_DEBUGGER(); return GPIO_RESULT_ALREADY_OPENED; } // No action if allocation failed during gpio construct if (!gpio->hw_container.ddc) { - ASSERT_CRITICAL(false); + BREAK_TO_DEBUGGER(); return GPIO_RESULT_NON_SPECIFIC_ERROR; } gpio->mode = mode; |