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mconsole_proc(): don't mess with file->f_pos

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Al Viro 2018-02-10 01:35:16 +00:00 committed by Linus Torvalds
parent 878e66d06f
commit 7a501609c2
1 changed files with 2 additions and 1 deletions
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3
arch/um/drivers/mconsole_kern.c
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@ -130,6 +130,7 @@ void mconsole_proc(struct mc_request *req)
struct file *file;
int first_chunk = 1;
char *ptr = req->request.data;
loff_t pos = 0;
ptr += strlen("proc");
ptr = skip_spaces(ptr);
@ -148,7 +149,7 @@ void mconsole_proc(struct mc_request *req)
}
do {
len = kernel_read(file, buf, PAGE_SIZE - 1, &file->f_pos);
len = kernel_read(file, buf, PAGE_SIZE - 1, &pos);
if (len < 0) {
mconsole_reply(req, "Read of file failed", 1, 0);
goto out_free;