diff options
| author | Brian Norris <computersforpeace@gmail.com> | 2012-02-08 13:26:21 -0800 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-02-29 09:19:17 +0200 |
| commit | ac10be41ad321752682f2549ebc42b2512012f60 (patch) | |
| tree | 54ffdd803195a2d5e1a1a489d20a4b29d77128e7 /lib | |
| parent | c3e2250260f9ab7846cea5ae974ddb7379a8fef6 (diff) | |
libmtd_legacy: don't open device in R/W
On legacy kernels with ROM devices, we can get mtdinfo errors like:
libmtd: error!: cannot open "/dev/mtd4"
error 13 (Permission denied)
mtdinfo: error!: libmtd failed get MTD device 4 information
error 13 (Permission denied)
We don't need O_RDRW access for informational ioctls(), so make this
O_RDONLY.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libmtd_legacy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libmtd_legacy.c b/lib/libmtd_legacy.c index d3f1672..1ae9946 100644 --- a/lib/libmtd_legacy.c +++ b/lib/libmtd_legacy.c @@ -262,7 +262,7 @@ int legacy_get_dev_info(const char *node, struct mtd_dev_info *mtd) mtd->mtd_num = mtd->minor / 2; - fd = open(node, O_RDWR); + fd = open(node, O_RDONLY); if (fd == -1) return sys_errmsg("cannot open \"%s\"", node); |