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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-02 02:18:46 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-02 02:18:46 +0300
commit56446efab9ce4961fe0fe6bbc5bc66374b08b9f3 (patch)
tree229e71b9be9f854f3d9c6104ca21af76d7eae1fc
parent4fdea5848b3c7fb13a0bfd7f768dcf15b534dafe (diff)
parentff847781049c37dff9ad4af2bf2d7aad02622f96 (diff)
downloadlinux-56446efab9ce4961fe0fe6bbc5bc66374b08b9f3.tar.xz
Merge branch 'uaccess.__copy_from_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess/__copy_from_user updates from Al Viro: "Getting rid of __copy_from_user() callers - patches that don't fit into other series" * 'uaccess.__copy_from_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: pstore: switch to copy_from_user() firewire: switch ioctl_queue_iso to use of copy_from_user()
-rw-r--r--drivers/firewire/core-cdev.c4
-rw-r--r--fs/pstore/ram_core.c4
2 files changed, 2 insertions, 6 deletions
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 6e291d8f3a27..c7ea4f2d5ca6 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -1081,8 +1081,6 @@ static int ioctl_queue_iso(struct client *client, union ioctl_arg *arg)
return -EINVAL;
p = (struct fw_cdev_iso_packet __user *)u64_to_uptr(a->packets);
- if (!access_ok(p, a->size))
- return -EFAULT;
end = (void __user *)p + a->size;
count = 0;
@@ -1120,7 +1118,7 @@ static int ioctl_queue_iso(struct client *client, union ioctl_arg *arg)
&p->header[transmit_header_bytes / 4];
if (next > end)
return -EINVAL;
- if (__copy_from_user
+ if (copy_from_user
(u.packet.header, p->header, transmit_header_bytes))
return -EFAULT;
if (u.packet.skip && ctx->type == FW_ISO_CONTEXT_TRANSMIT &&
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index c917c191e78c..aa8e0b65ff1a 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -283,7 +283,7 @@ static int notrace persistent_ram_update_user(struct persistent_ram_zone *prz,
const void __user *s, unsigned int start, unsigned int count)
{
struct persistent_ram_buffer *buffer = prz->buffer;
- int ret = unlikely(__copy_from_user(buffer->data + start, s, count)) ?
+ int ret = unlikely(copy_from_user(buffer->data + start, s, count)) ?
-EFAULT : 0;
persistent_ram_update_ecc(prz, start, count);
return ret;
@@ -348,8 +348,6 @@ int notrace persistent_ram_write_user(struct persistent_ram_zone *prz,
int rem, ret = 0, c = count;
size_t start;
- if (unlikely(!access_ok(s, count)))
- return -EFAULT;
if (unlikely(c > prz->buffer_size)) {
s += c - prz->buffer_size;
c = prz->buffer_size;