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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-11-22 12:14:46 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-11-22 12:14:46 -0800 |
| commit | 4a51c60a11158961f1291c5b95ff7e4cddfb0353 (patch) | |
| tree | 1750832bdb1becf31c056280d1ca7fe3104ce9dd /fs | |
| parent | d27637ece80f25124e0e6871b7b6cb855e1c670c (diff) | |
| parent | 66383800df9cbdbf3b0c34d5a51bf35bcdb72fd2 (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"8 patches.
Subsystems affected by this patch series: mm (madvise, pagemap,
readahead, memcg, userfaultfd), kbuild, and vfs"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm: fix madvise WILLNEED performance problem
libfs: fix error cast of negative value in simple_attr_write()
mm/userfaultfd: do not access vma->vm_mm after calling handle_userfault()
mm: memcg/slab: fix root memcg vmstats
mm: fix readahead_page_batch for retry entries
mm: fix phys_to_target_node() and memory_add_physaddr_to_nid() exports
compiler-clang: remove version check for BPF Tracing
mm/madvise: fix memory leak from process_madvise
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/libfs.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/libfs.c b/fs/libfs.c index fc34361c1489..7124c2e8df2f 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -959,7 +959,7 @@ ssize_t simple_attr_write(struct file *file, const char __user *buf, size_t len, loff_t *ppos) { struct simple_attr *attr; - u64 val; + unsigned long long val; size_t size; ssize_t ret; @@ -977,7 +977,9 @@ ssize_t simple_attr_write(struct file *file, const char __user *buf, goto out; attr->set_buf[size] = '\0'; - val = simple_strtoll(attr->set_buf, NULL, 0); + ret = kstrtoull(attr->set_buf, 0, &val); + if (ret) + goto out; ret = attr->set(attr->data, val); if (ret == 0) ret = len; /* on success, claim we got the whole input */ |