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mmc: debugfs: remove BUG_ON from mmc_ext_csd_open
Return error value for file_operations callback instead of triggering BUG_ON which is meaningless. Personally I don't believe n != EXT_CSD_STR_LEN could happen. Anyway, propagate the error to the caller. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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1 changed files with 5 additions and 1 deletions
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@ -321,7 +321,11 @@ static int mmc_ext_csd_open(struct inode *inode, struct file *filp)
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for (i = 0; i < 512; i++)
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n += sprintf(buf + n, "%02x", ext_csd[i]);
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n += sprintf(buf + n, "\n");
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BUG_ON(n != EXT_CSD_STR_LEN);
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if (n != EXT_CSD_STR_LEN) {
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err = -EINVAL;
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goto out_free;
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}
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filp->private_data = buf;
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kfree(ext_csd);
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