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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Benjamin Marzinski <bmarzins@redhat.com>
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Date: Thu, 25 Jun 2020 20:46:08 -0500
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Subject: [PATCH] libmultipath: fix sysfs dev_loss_tmo parsing
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dev_loss_tmo is a u32 value. However the kernel sysfs code prints it as
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a signed integer. This means that if dev_loss_tmo is above INT_MAX, the
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sysfs value will be a negative number. Parsing this was causing
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sysfs_set_rport_tmo() to fail.
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Signed-off-by: Martin Wilck <mwilck@suse.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/discovery.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
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index ffec5162..83a41a4a 100644
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--- a/libmultipath/discovery.c
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+++ b/libmultipath/discovery.c
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@@ -583,7 +583,7 @@ sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
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struct udev_device *rport_dev = NULL;
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char value[16], *eptr;
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char rport_id[32];
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- unsigned long long tmo = 0;
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+ unsigned int tmo;
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int ret;
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sprintf(rport_id, "rport-%d:%d-%d",
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@@ -607,8 +607,8 @@ sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
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"error %d", rport_id, -ret);
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goto out;
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}
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- tmo = strtoull(value, &eptr, 0);
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- if (value == eptr || tmo == ULLONG_MAX) {
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+ tmo = strtoul(value, &eptr, 0);
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+ if (value == eptr) {
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condlog(0, "%s: Cannot parse dev_loss_tmo "
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"attribute '%s'", rport_id, value);
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goto out;
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--
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2.17.2
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