From 4ed0b4b2e49fb61a5643c7abfabb51b66c4114b0 Mon Sep 17 00:00:00 2001 From: Johnny Liu Date: Fri, 1 Sep 2023 14:59:09 +0300 Subject: [PATCH] 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 Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230901115910.701518-1-cyndis@kapsi.fi Signed-off-by: Sasha Levin --- drivers/gpu/host1x/context.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) 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]; -- 2.47.2