drm/exynos: fix missing decrement of retry counter
authorColin Ian King <colin.king@canonical.com>
Mon, 22 Jul 2019 22:25:35 +0000 (23:25 +0100)
committerInki Dae <inki.dae@samsung.com>
Fri, 2 Aug 2019 07:50:18 +0000 (16:50 +0900)
commit1bbbab097a05276e312dd2462791d32b21ceb1ee
treeba7e69a41af383c7e3f66cea46191965bb606d69
parentd6f25bd9d4079165ea90f12d71e06d1dca83cd86
drm/exynos: fix missing decrement of retry counter

Currently the retry counter is not being decremented, leading to a
potential infinite spin if the scalar_reads don't change state.

Addresses-Coverity: ("Infinite loop")
Fixes: 280e54c9f614 ("drm/exynos: scaler: Reset hardware before starting the operation")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
drivers/gpu/drm/exynos/exynos_drm_scaler.c