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authorLinus Torvalds <torvalds@linux-foundation.org>2009-02-26 17:45:57 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-26 17:45:57 -0500
commit221be177e68e197a946bb991c8b91468e960be4e (patch)
treef77313df6358700d58cc7921551400170a8f6700 /drivers/mtd/devices/slram.c
parentd49981150387c481779a544ec641f17882f4bbfb (diff)
parentb50be33e42e2c87812b30aee1a2b2a5ac6cb3ffa (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/slram.c')
-rw-r--r--drivers/mtd/devices/slram.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c
index a425d09f35a0..00248e81ecd5 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)
267 if (*(szlength) != '+') { 267 if (*(szlength) != '+') {
268 devlength = simple_strtoul(szlength, &buffer, 0); 268 devlength = simple_strtoul(szlength, &buffer, 0);
269 devlength = handle_unit(devlength, buffer) - devstart; 269 devlength = handle_unit(devlength, buffer) - devstart;
270 if (devlength < devstart)
271 goto err_out;
272
273 devlength -= devstart;
270 } else { 274 } else {
271 devlength = simple_strtoul(szlength + 1, &buffer, 0); 275 devlength = simple_strtoul(szlength + 1, &buffer, 0);
272 devlength = handle_unit(devlength, buffer); 276 devlength = handle_unit(devlength, buffer);
273 } 277 }
274 T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n", 278 T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n",
275 devname, devstart, devlength); 279 devname, devstart, devlength);
276 if ((devstart < 0) || (devlength < 0) || (devlength % SLRAM_BLK_SZ != 0)) { 280 if (devlength % SLRAM_BLK_SZ != 0)
277 E("slram: Illegal start / length parameter.\n"); 281 goto err_out;
278 return(-EINVAL);
279 }
280 282
281 if ((devstart = register_device(devname, devstart, devlength))){ 283 if ((devstart = register_device(devname, devstart, devlength))){
282 unregister_devices(); 284 unregister_devices();
283 return((int)devstart); 285 return((int)devstart);
284 } 286 }
285 return(0); 287 return(0);
288
289err_out:
290 E("slram: Illegal length parameter.\n");
291 return(-EINVAL);
286} 292}
287 293
288#ifndef MODULE 294#ifndef MODULE