diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-01-25 11:45:08 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-01-25 17:48:02 -0500 |
| commit | d3abc78f4fd4b4b45b978ae42b5a9d82ee3b8864 (patch) | |
| tree | 62c686945a6cc721ab4152607052cdddefd333ef | |
| parent | 23a63e91c15557ff302b80cfc631c7749f4fb192 (diff) | |
drm/amd/display: Fix a potential NULL dereference
The debug printk dereferences "link->link_enc" before we have ensured
that it is non-NULL. Fix this potential NULL derefence by moving the
printk after the check.
Fixes: 64ff0882426e56 ("drm/amd/display: Log link/connector info provided in BIOS object table")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 91d4130cd2cb..55f20d731b25 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -1525,13 +1525,13 @@ static bool dc_link_construct(struct dc_link *link, link->link_enc = link->dc->res_pool->funcs->link_enc_create(&enc_init_data); - DC_LOG_DC("BIOS object table - DP_IS_USB_C: %d", link->link_enc->features.flags.bits.DP_IS_USB_C); - if (!link->link_enc) { DC_ERROR("Failed to create link encoder!\n"); goto link_enc_create_fail; } + DC_LOG_DC("BIOS object table - DP_IS_USB_C: %d", link->link_enc->features.flags.bits.DP_IS_USB_C); + link->link_enc_hw_inst = link->link_enc->transmitter; for (i = 0; i < 4; i++) { |