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ubi: ubi_get_ec_info: Fix compiling error 'cast specifies array type'

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On risc V platform, there is a type conversion for the return value
(unsigned long type) of __untagged_addr_remote() in function
untagged_addr(). The compiler will complain when the parameter 'addr'
is an array type:
  arch/riscv/include/asm/uaccess.h:33:9: error: cast specifies array type
  (__force  __typeof__(addr))__untagged_addr_remote(current->mm, __addr)

Fix it by converting the input parameter as a pointer.

Fixes: 01099f635a ("ubi: Implement ioctl for detailed erase counters")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501191405.WYnmdL0U-lkp@intel.com/
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Zhihao Cheng
2025-01-20 12:38:24 +08:00
committed by Richard Weinberger
parent 01099f635a
commit 69146a8c89
1 changed files with 2 additions and 1 deletions
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drivers/mtd/ubi/cdev.c
+2 -1
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@@ -851,7 +851,8 @@ static int ubi_get_ec_info(struct ubi_device *ubi, struct ubi_ecinfo_req __user
end_peb = ubi->peb_count;
/* Check access rights before filling erase_counters array */
if (!access_ok(ureq->erase_counters, (end_peb-req.start) * sizeof(int32_t)))
if (!access_ok((void __user *)ureq->erase_counters,
(end_peb-req.start) * sizeof(int32_t)))
return -EFAULT;
/* Fill erase counter array */