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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-05 16:05:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-05 16:05:24 -0700
commit7114f51fcb979f167ab5f625ac74059dcb1afc28 (patch)
treecb15e7498eccb41a38bd2ff20e873ffb0bfb7c1d /net/irda
parentea3b25e1320df4e575c323b6ab22a5fc79976fbe (diff)
parente4448ed87ccdbacb74871736f63220642242b32f (diff)
downloadlinux-7114f51fcb979f167ab5f625ac74059dcb1afc28.tar.bz2
Merge branch 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull memdup_user() conversions from Al Viro: "A fairly self-contained series - hunting down open-coded memdup_user() and memdup_user_nul() instances" * 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: bpf: don't open-code memdup_user() kimage_file_prepare_segments(): don't open-code memdup_user() ethtool: don't open-code memdup_user() do_ip_setsockopt(): don't open-code memdup_user() do_ipv6_setsockopt(): don't open-code memdup_user() irda: don't open-code memdup_user() xfrm_user_policy(): don't open-code memdup_user() ima_write_policy(): don't open-code memdup_user_nul() sel_write_validatetrans(): don't open-code memdup_user_nul()
Diffstat (limited to 'net/irda')
-rw-r--r--net/irda/af_irda.c48
1 files changed, 12 insertions, 36 deletions
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 8d77ad5cadaf..2e6990f8b80b 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -1901,16 +1901,10 @@ static int irda_setsockopt(struct socket *sock, int level, int optname,
goto out;
}
- ias_opt = kmalloc(sizeof(struct irda_ias_set), GFP_ATOMIC);
- if (ias_opt == NULL) {
- err = -ENOMEM;
- goto out;
- }
-
/* Copy query to the driver. */
- if (copy_from_user(ias_opt, optval, optlen)) {
- kfree(ias_opt);
- err = -EFAULT;
+ ias_opt = memdup_user(optval, optlen);
+ if (IS_ERR(ias_opt)) {
+ err = PTR_ERR(ias_opt);
goto out;
}
@@ -2032,16 +2026,10 @@ static int irda_setsockopt(struct socket *sock, int level, int optname,
goto out;
}
- ias_opt = kmalloc(sizeof(struct irda_ias_set), GFP_ATOMIC);
- if (ias_opt == NULL) {
- err = -ENOMEM;
- goto out;
- }
-
/* Copy query to the driver. */
- if (copy_from_user(ias_opt, optval, optlen)) {
- kfree(ias_opt);
- err = -EFAULT;
+ ias_opt = memdup_user(optval, optlen);
+ if (IS_ERR(ias_opt)) {
+ err = PTR_ERR(ias_opt);
goto out;
}
@@ -2317,16 +2305,10 @@ bed:
goto out;
}
- ias_opt = kmalloc(sizeof(struct irda_ias_set), GFP_ATOMIC);
- if (ias_opt == NULL) {
- err = -ENOMEM;
- goto out;
- }
-
/* Copy query to the driver. */
- if (copy_from_user(ias_opt, optval, len)) {
- kfree(ias_opt);
- err = -EFAULT;
+ ias_opt = memdup_user(optval, len);
+ if (IS_ERR(ias_opt)) {
+ err = PTR_ERR(ias_opt);
goto out;
}
@@ -2381,16 +2363,10 @@ bed:
goto out;
}
- ias_opt = kmalloc(sizeof(struct irda_ias_set), GFP_ATOMIC);
- if (ias_opt == NULL) {
- err = -ENOMEM;
- goto out;
- }
-
/* Copy query to the driver. */
- if (copy_from_user(ias_opt, optval, len)) {
- kfree(ias_opt);
- err = -EFAULT;
+ ias_opt = memdup_user(optval, len);
+ if (IS_ERR(ias_opt)) {
+ err = PTR_ERR(ias_opt);
goto out;
}