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authorBradley Bolen <bradleybolen@gmail.com>2019-11-16 20:00:45 -0500
committerUlf Hansson <ulf.hansson@linaro.org>2019-11-18 10:05:38 +0100
commitf3d7c2292d104519195fdb11192daec13229c219 (patch)
tree040b4395c1952d60bbb8393d1c77a1e16d752f74 /include/linux/mmc
parentc91843463e9e821dc3b48fe37e3155fa38299f6e (diff)
downloadlwn-f3d7c2292d104519195fdb11192daec13229c219.tar.gz
lwn-f3d7c2292d104519195fdb11192daec13229c219.zip
mmc: core: Fix size overflow for mmc partitions
With large eMMC cards, it is possible to create general purpose partitions that are bigger than 4GB. The size member of the mmc_part struct is only an unsigned int which overflows for gp partitions larger than 4GB. Change this to a u64 to handle the overflow. Signed-off-by: Bradley Bolen <bradleybolen@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc')
-rw-r--r--include/linux/mmc/card.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index e459b38ef33c..cf3780a6ccc4 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -226,7 +226,7 @@ struct mmc_queue_req;
* MMC Physical partitions
*/
struct mmc_part {
- unsigned int size; /* partition size (in bytes) */
+ u64 size; /* partition size (in bytes) */
unsigned int part_cfg; /* partition type */
char name[MAX_MMC_PART_NAME_LEN];
bool force_ro; /* to make boot parts RO by default */