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drivers/bch/bchdev_driver.c: Fix BIOC_FLUSH

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Don't fail if the lowerhalf mtd driver doesn't support BIOC_FLUSH;
This is normal - if the lowerhalf has nothing to do, it doesn't handle
the IOCTL.

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
This commit is contained in:
Jukka Laitinen 2024-12-18 10:29:34 +02:00 committed by Xiang Xiao
parent 1200d49b83
commit 925b8b0904
1 changed files with 18 additions and 3 deletions
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21
drivers/bch/bchdev_driver.c
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@ -437,16 +437,31 @@ static int bch_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
case BIOC_FLUSH: case BIOC_FLUSH:
{ {
FAR struct inode *bchinode = bch->inode;
int ret2 = -ENOTTY;
/* Flush any dirty pages remaining in the cache */ /* Flush any dirty pages remaining in the cache */
ret = bchlib_flushsector(bch, false); ret = bchlib_flushsector(bch, false);
if (ret < 0)
/* Also pass the IOCTL command to the contained block driver */
if (bchinode->u.i_bops->ioctl != NULL)
{ {
break; ret2 = bchinode->u.i_bops->ioctl(bchinode, cmd, arg);
} }
/* Go through */ /* If the lowerhalf supports BIOC_FLUSH, and flushsector succeeded,
* return the error code from the lowerhalf. Otherwise just return
* the error code from bchlib_flushsector
*/
if (ret2 != -ENOTTY && ret == OK)
{
ret = ret2;
}
} }
break;
/* Pass the IOCTL command on to the contained block driver. */ /* Pass the IOCTL command on to the contained block driver. */