drivers: nvgpu: Print chid instead of ch->chid

During VM guest reset GPU interrupts were triggered after the
corresponding channel has been disabled. This leads to a
NULL-Ptr access in fecs error handling. This change removes the
access to invalid ch->chid.

Bug 3362082

Change-Id: I2d51a62ec47a07ae7ea90394fec76d3c3a8d186c
Signed-off-by: Thomas Steinle <tsteinle@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2590478
(cherry picked from commit b1b04915bfad7060479624d5ec85894c6bac3ba6)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2596201
Reviewed-by: Phoenix Jung <pjung@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
index abb53e66..5d1545c2 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
@@ -5321,7 +5321,7 @@ int gk20a_gr_handle_fecs_error(struct gk20a *g, struct channel_gk20a *ch,
         } else {
                 nvgpu_err(g,
                         "unhandled fecs error interrupt 0x%08x for channel %u",
-                        gr_fecs_intr, ch->chid);
+                        gr_fecs_intr, chid);
                 gk20a_fecs_dump_falcon_stats(g);
         }