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| author | John Crispin <blogic@openwrt.org> | 2014-12-03 14:32:38 +0000 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2014-12-03 14:32:38 +0000 |
| commit | e657f8b7e36624bf263376e7f532a92459c29aec (patch) | |
| tree | 3fe8a00e990c6e5d57db49051c9ec6e0ab21c1fa /target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch | |
| parent | b049c3f4af69006b96a6c1987b48a35015a01f3a (diff) | |
| download | master-187ad058-e657f8b7e36624bf263376e7f532a92459c29aec.tar.gz master-187ad058-e657f8b7e36624bf263376e7f532a92459c29aec.tar.bz2 master-187ad058-e657f8b7e36624bf263376e7f532a92459c29aec.zip | |
kernel: make ubi auto-attach check for a tar file magic
Signed-off-by: John Crispin <blogic@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43506 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch')
| -rw-r--r-- | target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch b/target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch index ed83666661..2b72665853 100644 --- a/target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch +++ b/target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch @@ -11,7 +11,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org> --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c -@@ -1209,6 +1209,36 @@ static struct mtd_info * __init open_mtd +@@ -1209,6 +1209,47 @@ return mtd; } @@ -29,6 +29,17 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org> + mtd = open_mtd_device("data"); + + if (!IS_ERR(mtd)) { ++ size_t len; ++ char magic[6]; ++ ++ /* check for a tar file magic */ ++ err = mtd_read(mtd, 261, 6, &len, (void *) magic); ++ if (!err && len == 6 && !strncmp(magic, "ustar", 5)) { ++ ubi_err("cannot attach mtd%d as there is a valid tar magic", mtd->index); ++ put_mtd_device(mtd); ++ return; ++ } ++ + /* auto-add only media types where UBI makes sense */ + if (mtd->type == MTD_NANDFLASH || + mtd->type == MTD_DATAFLASH || @@ -48,7 +59,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org> static int __init ubi_init(void) { int err, i, k; -@@ -1298,6 +1328,12 @@ static int __init ubi_init(void) +@@ -1298,6 +1339,12 @@ } } |