The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 8425400759749e23aaa831f2482b96211201af33 Mon Sep 17 00:00:00 2001
From: Denis Efremov efremov@linux.com Date: Fri, 5 Jun 2020 20:37:43 +0300 Subject: [PATCH] drm/amd/display: Use kvfree() to free coeff in build_regamma()
Use kvfree() instead of kfree() to free coeff in build_regamma() because the memory is allocated with kvzalloc().
Fixes: e752058b8671 ("drm/amd/display: Optimize gamma calculations") Cc: stable@vger.kernel.org Signed-off-by: Denis Efremov efremov@linux.com Signed-off-by: Alex Deucher alexander.deucher@amd.com
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c index 9431b48aecb4..56bb1f9f77ce 100644 --- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c +++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c @@ -843,7 +843,7 @@ static bool build_regamma(struct pwl_float_data_ex *rgb_regamma, pow_buffer_ptr = -1; // reset back to no optimize ret = true; release: - kfree(coeff); + kvfree(coeff); return ret; }