michaelh/zephyr
1
0
Fork 0
Code Releases Activity

fs: fs_unmount will return -ENOTSUP if not implemented by driver

Browse source 
The commit changes error handling by fs_unmount; the function will
return -EINVAL if mount point, described by mp, is not mounted or
-ENNOTSUP when unmounting is not supported by the driver; in the second
case it will also log error.

Additionally to the above changes, checks for correct mnt_path and
mnt_path, within fs_unmount, have been removed as they are not needed;
only the fs_mount_t->fs pointer is needed to decide whether system is
mounted or not.

Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
This commit is contained in:
Dominik Ermel 2020-10-15 13:26:59 +00:00 • committed by Carles Cufí
commit e7886c6634
3 changed files with 17 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

4
include/fs/fs.h
View file

@ -416,7 +416,9 @@ int fs_mount(struct fs_mount_t *mp);
* @param mp Pointer to the fs_mount_t structure
*
* @retval 0 on success;
* @retval <0 negative errno code on error.
* @retval -EINVAL if no system has been mounted at given mount point;
* @retval -ENOTSUP when not supported by underlying file system driver;
* @retval <0 an other negative errno code on error.
*/
int fs_unmount(struct fs_mount_t *mp);

19
subsys/fs/fs.c
View file

@ -657,16 +657,21 @@ int fs_unmount(struct fs_mount_t *mp)
{
int rc = -EINVAL;
if ((mp == NULL) || (mp->mnt_point == NULL) ||
(strlen(mp->mnt_point) <= 1)) {
LOG_ERR("invalid mount point!!");
return -EINVAL;
if (mp == NULL) {
return rc;
}
k_mutex_lock(&mutex, K_FOREVER);
if ((mp->fs == NULL) || mp->fs->unmount == NULL) {
LOG_ERR("fs ops functions not set!!");
rc = -EINVAL;
if (mp->fs == NULL) {
LOG_ERR("fs not mounted (mp == %p)", mp);
goto unmount_err;
}
if (mp->fs->unmount == NULL) {
LOG_ERR("mount path %s is not unmountable",
log_strdup(mp->mnt_point));
rc = -ENOTSUP;
goto unmount_err;
}

4
tests/subsys/fs/fs_api/src/test_fs_dir_file.c
View file

@ -119,7 +119,7 @@ void test_unmount(void)
TC_PRINT("\nunmount file system that has never been mounted:\n");
ret = fs_unmount(&test_fs_mnt_unsupported_fs);
zassert_not_equal(ret, 0, "Unmount a never mounted fs");
zassert_equal(ret, -EINVAL, "Unmount a never mounted fs");
TC_PRINT("\nunmount file system multiple times:\n");
ret = fs_unmount(&test_fs_mnt_1);
@ -127,7 +127,7 @@ void test_unmount(void)
test_fs_mnt_1.fs = &temp_fs;
ret = fs_unmount(&test_fs_mnt_1);
zassert_not_equal(ret, 0, "Unmount a unmounted fs");
zassert_equal(ret, -EINVAL, "Unmount a unmounted fs");
}
/**