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mmc: block: Fix use-after-free issue for rpmb
The data structure member “rpmb->md” was passed to a call of the function
“mmc_blk_put” after a call of the function “put_device”. Reorder these
function calls to keep the data accesses consistent.
Fixes: 1c87f73578
("mmc: block: Fix bug when removing RPMB chardev ")
Signed-off-by: Peng Hao <richard.peng@oppo.com>
Cc: stable@vger.kernel.org
[Uffe: Fixed up mangled patch and updated commit message]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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1 changed files with 1 additions and 1 deletions
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@ -2484,8 +2484,8 @@ static int mmc_rpmb_chrdev_release(struct inode *inode, struct file *filp)
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struct mmc_rpmb_data *rpmb = container_of(inode->i_cdev,
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struct mmc_rpmb_data, chrdev);
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put_device(&rpmb->dev);
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mmc_blk_put(rpmb->md);
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put_device(&rpmb->dev);
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return 0;
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}
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