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| author | Thibaut VARÈNE <hacks@slashdirt.org> | 2021-05-11 12:50:21 +0200 |
|---|---|---|
| committer | Koen Vandeputte <koen.vandeputte@ncentric.com> | 2021-05-12 10:14:33 +0200 |
| commit | 2f0ab9379909dbc765b0e250669f8f57254c8463 (patch) | |
| tree | 88f01350b2a20f8cc6e3d213bc2796d1769f4a14 | |
| parent | 4d9f3ae2bb3904d6b5bc114291100b56cb320041 (diff) | |
| download | upstream-2f0ab9379909dbc765b0e250669f8f57254c8463.tar.gz upstream-2f0ab9379909dbc765b0e250669f8f57254c8463.tar.bz2 upstream-2f0ab9379909dbc765b0e250669f8f57254c8463.zip | |
generic: platform/mikrotik: release mtd device after use
The code uses get_mtd_device_nm() which must be followed by a call to
put_mtd_device() once the handle is no longer used.
This fixes spurious shutdown console messages such as:
[ 2256.334562] Removing MTD device #7 (soft_config) with use count 1
Reported-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
(cherry picked from commit 4e385a27d6c4aab62ef7fc9856f09ebee9632985)
| -rw-r--r-- | target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c | 5 | ||||
| -rw-r--r-- | target/linux/generic/files/drivers/platform/mikrotik/rb_softconfig.c | 7 |
2 files changed, 10 insertions, 2 deletions
diff --git a/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c b/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c index 41dea98b5e..e6a6928896 100644 --- a/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c +++ b/target/linux/generic/files/drivers/platform/mikrotik/rb_hardconfig.c @@ -697,10 +697,13 @@ int __init rb_hardconfig_init(struct kobject *rb_kobj) hc_buflen = mtd->size; hc_buf = kmalloc(hc_buflen, GFP_KERNEL); - if (!hc_buf) + if (!hc_buf) { + put_mtd_device(mtd); return -ENOMEM; + } ret = mtd_read(mtd, 0, hc_buflen, &bytes_read, hc_buf); + put_mtd_device(mtd); if (ret) goto fail; diff --git a/target/linux/generic/files/drivers/platform/mikrotik/rb_softconfig.c b/target/linux/generic/files/drivers/platform/mikrotik/rb_softconfig.c index 54e263df8c..070bd32d5a 100644 --- a/target/linux/generic/files/drivers/platform/mikrotik/rb_softconfig.c +++ b/target/linux/generic/files/drivers/platform/mikrotik/rb_softconfig.c @@ -686,6 +686,8 @@ static ssize_t sc_commit_store(struct kobject *kobj, struct kobj_attribute *attr } write_unlock(&sc_bufrwl); + put_mtd_device(mtd); + if (ret) goto mtdfail; @@ -721,10 +723,13 @@ int __init rb_softconfig_init(struct kobject *rb_kobj) sc_buflen = mtd->size; sc_buf = kmalloc(sc_buflen, GFP_KERNEL); - if (!sc_buf) + if (!sc_buf) { + put_mtd_device(mtd); return -ENOMEM; + } ret = mtd_read(mtd, 0, sc_buflen, &bytes_read, sc_buf); + put_mtd_device(mtd); if (ret) goto fail; |