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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-01 16:18:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-01 16:18:46 -0700 |
| commit | 56446efab9ce4961fe0fe6bbc5bc66374b08b9f3 (patch) | |
| tree | 229e71b9be9f854f3d9c6104ca21af76d7eae1fc /fs/pstore | |
| parent | 4fdea5848b3c7fb13a0bfd7f768dcf15b534dafe (diff) | |
| parent | ff847781049c37dff9ad4af2bf2d7aad02622f96 (diff) | |
| download | lwn-56446efab9ce4961fe0fe6bbc5bc66374b08b9f3.tar.gz lwn-56446efab9ce4961fe0fe6bbc5bc66374b08b9f3.zip | |
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()
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/ram_core.c | 4 |
1 files changed, 1 insertions, 3 deletions
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; |