[PATCH -next 2/3] xen: balloon: Replaced simple_strtoull() with kstrtoull()
From: Chen Huang <hidden>
Date: 2021-05-26 09:10:27
Also in:
lkml, ocfs2-devel, xen-devel
Subsystem:
the rest, xen hypervisor interface · Maintainers:
Linus Torvalds, Juergen Gross, Stefano Stabellini
The simple_strtoull() function is deprecated in some situation, since it does not check for the range overflow, use kstrtoull() instead. Signed-off-by: Chen Huang <redacted> --- drivers/xen/xen-balloon.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c
index a8d24433c8e9..1fba838963d2 100644
--- a/drivers/xen/xen-balloon.c
+++ b/drivers/xen/xen-balloon.c@@ -163,13 +163,16 @@ static ssize_t store_target_kb(struct device *dev, const char *buf, size_t count) { - char *endchar; + ssize_t ret; unsigned long long target_bytes; if (!capable(CAP_SYS_ADMIN)) return -EPERM; - target_bytes = simple_strtoull(buf, &endchar, 0) * 1024; + ret = kstrtoull(buf, 0, &target_bytes); + if (ret) + return ret; + target_bytes *= 1024; balloon_set_new_target(target_bytes >> PAGE_SHIFT);
--
2.25.1