[PATCH] xfs_quota: fix unsigned int id comparisons

["Darrick J. Wong" <darrick.wong@xxxxxxxxxx>]

From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

Fix compiler warnings about unsigned int comparisons by replacing them
with an explicit check for the one possible invalid value (-1U).
id_from_string sets exitcode to nonzero when it sees this value, so the
call sites don't have to do that.

Coverity-id: 1463855, 1463856, 1463857
Fixes: 67a73d6139d0 ("xfs_quota: refactor code to generate id from name")
Fixes: 36dc471cc9bb ("xfs_quota: allow individual timer extension")
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
 quota/edit.c |   22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/quota/edit.c b/quota/edit.c
index cf9508bf..01d358f7 100644
--- a/quota/edit.c
+++ b/quota/edit.c
@@ -307,11 +307,11 @@ limit_f(
 
 
 	id = id_from_string(name, type);
-	if (id >= 0)
-		set_limits(id, type, mask, fs_path->fs_name,
-			   &bsoft, &bhard, &isoft, &ihard, &rtbsoft, &rtbhard);
-	else
-		exitcode = -1;
+	if (id == -1)
+		return 0;
+
+	set_limits(id, type, mask, fs_path->fs_name,
+		   &bsoft, &bhard, &isoft, &ihard, &rtbsoft, &rtbhard);
 	return 0;
 }
 
@@ -545,9 +545,10 @@ timer_f(
 	if (name)
 		id = id_from_string(name, type);
 
-	if (id >= 0)
-		set_timer(id, type, mask, fs_path->fs_name, value);
+	if (id == -1)
+		return 0;
 
+	set_timer(id, type, mask, fs_path->fs_name, value);
 	return 0;
 }
 
@@ -642,11 +643,10 @@ warn_f(
 	}
 
 	id = id_from_string(name, type);
-	if (id >= 0)
-		set_warnings(id, type, mask, fs_path->fs_name, value);
-	else
-		exitcode = -1;
+	if (id == -1)
+		return 0;
 
+	set_warnings(id, type, mask, fs_path->fs_name, value);
 	return 0;
 }