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| author | Richard Weinberger <richard@nod.at> | 2015-06-01 23:10:53 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2019-07-09 22:03:51 +0100 |
| commit | 2b651dccb59faeff3ed6c2f767b0c72161712b1a (patch) | |
| tree | c530ea3146e8e8d33fac2effcc3edd2756f66796 /drivers | |
| parent | 877ea54ae7258dc6ed431d88f8c836e5391df02f (diff) | |
| download | linux-stable-2b651dccb59faeff3ed6c2f767b0c72161712b1a.tar.gz linux-stable-2b651dccb59faeff3ed6c2f767b0c72161712b1a.tar.bz2 linux-stable-2b651dccb59faeff3ed6c2f767b0c72161712b1a.zip | |
mtd: docg3: Fix kasprintf() usage
commit 0eb8618bd07533f423fed47399a0d6387bfe7cac upstream.
kasprintf() does a dynamic memory allocation and can fail.
We have to handle that case.
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/devices/docg3.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c index d23af2e55984..72b7195676db 100644 --- a/drivers/mtd/devices/docg3.c +++ b/drivers/mtd/devices/docg3.c @@ -1822,7 +1822,7 @@ static void __exit doc_dbg_unregister(struct docg3 *docg3) * @chip_id: The chip ID of the supported chip * @mtd: The structure to fill */ -static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) +static int __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) { struct docg3 *docg3 = mtd->priv; int cfg; @@ -1835,6 +1835,8 @@ static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) case DOC_CHIPID_G3: mtd->name = kasprintf(GFP_KERNEL, "docg3.%d", docg3->device_id); + if (!mtd->name) + return -ENOMEM; docg3->max_block = 2047; break; } @@ -1857,6 +1859,8 @@ static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) mtd->_block_isbad = doc_block_isbad; mtd->ecclayout = &docg3_oobinfo; mtd->ecc_strength = DOC_ECC_BCH_T; + + return 0; } /** @@ -1920,7 +1924,9 @@ doc_probe_device(struct docg3_cascade *cascade, int floor, struct device *dev) goto nomem4; } - doc_set_driver_info(chip_id, mtd); + ret = doc_set_driver_info(chip_id, mtd); + if (ret) + goto nomem4; doc_hamming_ecc_init(docg3, DOC_LAYOUT_OOB_PAGEINFO_SZ); doc_reload_bbt(docg3); |