File 0011-fabrics-Fix-disconnect_by_device-from-disconnecting-.patch of Package nvme-cli.10193

From 9b65751fc29c87916b652728eac8c10f2e1212f8 Mon Sep 17 00:00:00 2001
From: Logan Gunthorpe <logang@deltatee.com>
Date: Tue, 28 Mar 2017 13:26:41 -0600
Subject: fabrics: Fix disconnect_by_device from disconnecting instance 0 on
 error

Git-commit: 41e3e96c12a138eddfe41f1db4deb57044bd4307
References: bsc#1058538

I was a bit surprised that running:

nvme disconnect -d /dev/nvme1

actually disconnected nvme0 and I could never disconnect nvme1. Turns
out the code was not expecting a full path and silently used instance
zero if it failed to parse any arguments.

This patch fixes it so that it ignores any path component and fails if
sscanf doesn't match any items.
---
 fabrics.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fabrics.c b/fabrics.c
index b4eaba8..7cf5f46 100644
--- a/fabrics.c
+++ b/fabrics.c
@@ -31,6 +31,7 @@
 #include <asm/byteorder.h>
 #include <inttypes.h>
 #include <linux/types.h>
+#include <libgen.h>
 
 #include "parser.h"
 #include "nvme-ioctl.h"
@@ -968,9 +969,12 @@ static int disconnect_by_device(char *device)
 	int instance;
 	int ret;
 
+	device = basename(device);
 	ret = sscanf(device, "nvme%d", &instance);
 	if (ret < 0)
 		return ret;
+	if (!ret)
+		return -1;
 
 	return remove_ctrl(instance);
 }
-- 
2.13.7