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authorJohnny Liu <johnliu@nvidia.com>2023-09-01 14:59:09 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-11-20 13:59:12 +0300
commit6ff845320605bcb496a4cc6ea5ede9af1cffd89f (patch)
tree277527098ec7824fdcba4adc0299f6f237a7de5c /drivers/gpu
parent212203ef4f5c95523780114e9bac2e99f74074c8 (diff)
downloadlinux-6ff845320605bcb496a4cc6ea5ede9af1cffd89f.tar.xz
gpu: host1x: Correct allocated size for contexts
[ Upstream commit e889a311f74f4ae8bd40755a2c58d02e1c684fef ] Original implementation over allocates the memory size for the contexts list. The size of memory for the contexts list is based on the number of iommu groups specified in the device tree. Fixes: 8aa5bcb61612 ("gpu: host1x: Add context device management code") Signed-off-by: Johnny Liu <johnliu@nvidia.com> Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230901115910.701518-1-cyndis@kapsi.fi Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/host1x/context.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/host1x/context.c b/drivers/gpu/host1x/context.c
index a3f336edd991..955c971c528d 100644
--- a/drivers/gpu/host1x/context.c
+++ b/drivers/gpu/host1x/context.c
@@ -34,10 +34,10 @@ int host1x_memory_context_list_init(struct host1x *host1x)
if (err < 0)
return 0;
- cdl->devs = kcalloc(err, sizeof(*cdl->devs), GFP_KERNEL);
+ cdl->len = err / 4;
+ cdl->devs = kcalloc(cdl->len, sizeof(*cdl->devs), GFP_KERNEL);
if (!cdl->devs)
return -ENOMEM;
- cdl->len = err / 4;
for (i = 0; i < cdl->len; i++) {
ctx = &cdl->devs[i];