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authorJohnny Liu2023-09-01 14:59:09 +0300
committerGreg Kroah-Hartman2023-11-20 11:52:00 +0100
commitaf19ebfc6a170bf817e04d3ba109cdcbc294895b (patch)
treebe5e82f881d1d9abcae436c5344b3eba70f8ed1d /drivers/gpu
parent9da019345405ffe977e3f79dddbf36a5b4c15058 (diff)
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 047696432eb2..93c0c532fe5a 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++) {
struct iommu_fwspec *fwspec;