diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-02-26 14:45:57 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-02-26 14:45:57 -0800 |
| commit | 221be177e68e197a946bb991c8b91468e960be4e (patch) | |
| tree | f77313df6358700d58cc7921551400170a8f6700 /drivers/mtd/devices | |
| parent | d49981150387c481779a544ec641f17882f4bbfb (diff) | |
| parent | b50be33e42e2c87812b30aee1a2b2a5ac6cb3ffa (diff) | |
Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
[MTD] [MAPS] Remove MODULE_DEVICE_TABLE() from ck804rom driver.
[JFFS2] fix mount crash caused by removed nodes
[JFFS2] force the jffs2 GC daemon to behave a bit better
[MTD] [MAPS] blackfin async requires complex mappings
[MTD] [MAPS] blackfin: fix memory leak in error path
[MTD] [MAPS] physmap: fix wrong free and del_mtd_{partition,device}
[MTD] slram: Handle negative devlength correctly
[MTD] map_rom has NULL erase pointer
[MTD] [LPDDR] qinfo_probe depends on lpddr
Diffstat (limited to 'drivers/mtd/devices')
| -rw-r--r-- | drivers/mtd/devices/slram.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c index a425d09f35a..00248e81ecd 100644 --- a/drivers/mtd/devices/slram.c +++ b/drivers/mtd/devices/slram.c @@ -267,22 +267,28 @@ static int parse_cmdline(char *devname, char *szstart, char *szlength) if (*(szlength) != '+') { devlength = simple_strtoul(szlength, &buffer, 0); devlength = handle_unit(devlength, buffer) - devstart; + if (devlength < devstart) + goto err_out; + + devlength -= devstart; } else { devlength = simple_strtoul(szlength + 1, &buffer, 0); devlength = handle_unit(devlength, buffer); } T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n", devname, devstart, devlength); - if ((devstart < 0) || (devlength < 0) || (devlength % SLRAM_BLK_SZ != 0)) { - E("slram: Illegal start / length parameter.\n"); - return(-EINVAL); - } + if (devlength % SLRAM_BLK_SZ != 0) + goto err_out; if ((devstart = register_device(devname, devstart, devlength))){ unregister_devices(); return((int)devstart); } return(0); + +err_out: + E("slram: Illegal length parameter.\n"); + return(-EINVAL); } #ifndef MODULE |