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scsi: ufs: Add back a missing sanity check to ufshcd_read_desc_param()

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Commit a78751da13c9e
("scsi: ufs: Fix unexpected values get from ufshcd_read_desc_param()")
wrongly deletes a condition check for tmp buffer allocation, this change
adds it back.

Change-Id: I0f27f30c90fd6592e10af039ce8227d48a85c790
Signed-off-by: Can Guo <cang@codeaurora.org>
This commit is contained in:
Can Guo
2020-10-20 02:11:44 -07:00
committed by Gerrit - the friendly Code Review server
parent 33a5e16376
commit 7ced4b974d
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/ufs/ufshcd.c
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@@ -4569,7 +4569,7 @@ int ufshcd_read_desc_param(struct ufs_hba *hba,
}
/* Check whether we need temp memory */
if (param_offset != 0) {
if (param_offset != 0 || param_size < buff_len) {
desc_buf = kzalloc(buff_len, GFP_KERNEL);
if (!desc_buf)
return -ENOMEM;