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| author | John Crispin <john@openwrt.org> | 2014-12-03 16:05:06 +0000 |
|---|---|---|
| committer | John Crispin <john@openwrt.org> | 2014-12-03 16:05:06 +0000 |
| commit | a21c9fd655ee6e5cc6efec2dca9b734f0be8c587 (patch) | |
| tree | b5ea253073e3c51136d8e89bd5e66e6da65ed656 /target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch | |
| parent | a10a204aab26ccec266cd09fa94110a61293fdd9 (diff) | |
| download | mtk-20170518-a21c9fd655ee6e5cc6efec2dca9b734f0be8c587.zip mtk-20170518-a21c9fd655ee6e5cc6efec2dca9b734f0be8c587.tar.gz mtk-20170518-a21c9fd655ee6e5cc6efec2dca9b734f0be8c587.tar.bz2 | |
kernel: make the ubi attach patch check for a valid ubi magic rather than a tar magic
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 43507
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, 8 insertions, 7 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 2b72665..f97a442 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 +1209,47 @@ +@@ -1209,6 +1209,48 @@ return mtd; } @@ -23,6 +23,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org> +{ + int err; + struct mtd_info *mtd; ++ + /* try attaching mtd device named "ubi" or "data" */ + mtd = open_mtd_device("ubi"); + if (IS_ERR(mtd)) @@ -30,12 +31,12 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org> + + if (!IS_ERR(mtd)) { + size_t len; -+ char magic[6]; ++ char magic[4]; + -+ /* 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); ++ /* check for a valid ubi magic */ ++ err = mtd_read(mtd, 0, 4, &len, (void *) magic); ++ if (!err && len == 4 && strncmp(magic, "UBI#", 4)) { ++ ubi_err("no valid UBI magic found inside mtd%d", mtd->index); + put_mtd_device(mtd); + return; + } @@ -59,7 +60,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org> static int __init ubi_init(void) { int err, i, k; -@@ -1298,6 +1339,12 @@ +@@ -1298,6 +1340,12 @@ } } |