summaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorMaíra Canal <maira.canal@usp.br>2022-01-31 19:22:42 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2022-02-01 17:31:55 +0100
commit90b2433edb6d995bd23d6adde753095b4ab26104 (patch)
tree808609b1f7efc50d00639b0b0754008f821c1274 /include
parentuml/x86: use x86 load_unaligned_zeropad() (diff)
downloadlinux-90b2433edb6d995bd23d6adde753095b4ab26104.tar.xz
linux-90b2433edb6d995bd23d6adde753095b4ab26104.zip
seq_file: fix NULL pointer arithmetic warning
Implement conditional logic in order to replace NULL pointer arithmetic. The use of NULL pointer arithmetic was pointed out by clang with the following warning: fs/kernfs/file.c:128:15: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return NULL + !*ppos; ~~~~ ^ fs/seq_file.c:559:14: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return NULL + (*pos == 0); Signed-off-by: Maíra Canal <maira.canal@usp.br> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/seq_file.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 88cc16444b43..60820ab511d2 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -162,6 +162,7 @@ int seq_dentry(struct seq_file *, struct dentry *, const char *);
int seq_path_root(struct seq_file *m, const struct path *path,
const struct path *root, const char *esc);
+void *single_start(struct seq_file *, loff_t *);
int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
int single_open_size(struct file *, int (*)(struct seq_file *, void *), void *, size_t);
int single_release(struct inode *, struct file *);