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| author | Shawn Lin <shawn.lin@rock-chips.com> | 2016-11-02 15:24:39 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-12-05 10:31:09 +0100 |
| commit | a48ee3e65a9e7395e8bab86728fcdc81c30a89ca (patch) | |
| tree | 70df777c1ef3238eb9b96f88c31448644b0f4c65 /drivers/mmc/core | |
| parent | 5df0e8231f9518ee5ca3f58a0777556dd03addd6 (diff) | |
| download | linux-a48ee3e65a9e7395e8bab86728fcdc81c30a89ca.tar.gz linux-a48ee3e65a9e7395e8bab86728fcdc81c30a89ca.tar.bz2 linux-a48ee3e65a9e7395e8bab86728fcdc81c30a89ca.zip | |
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>
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/debugfs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c index c8451ce557ae..30623b8b86a4 100644 --- a/drivers/mmc/core/debugfs.c +++ b/drivers/mmc/core/debugfs.c @@ -321,7 +321,11 @@ static int mmc_ext_csd_open(struct inode *inode, struct file *filp) for (i = 0; i < 512; i++) n += sprintf(buf + n, "%02x", ext_csd[i]); n += sprintf(buf + n, "\n"); - BUG_ON(n != EXT_CSD_STR_LEN); + + if (n != EXT_CSD_STR_LEN) { + err = -EINVAL; + goto out_free; + } filp->private_data = buf; kfree(ext_csd); |