This is a note to let you know that I've just added the patch titled
gpu: host1x: Correct allocated size for contexts
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
gpu-host1x-correct-allocated-size-for-contexts.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 586e7a0a8b92c323dcdbf7b5b52ce97ff84d9a56
Author: Johnny Liu <johnliu@xxxxxxxxxx>
Date: Fri Sep 1 14:59:09 2023 +0300
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@xxxxxxxxxx>
Signed-off-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901115910.701518-1-cyndis@xxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/host1x/context.c b/drivers/gpu/host1x/context.c
index 9ad89d22c0ca7..824085278732b 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];
