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List:       user-mode-linux-devel
Subject:    [uml-devel] [PATCH 01/10] uml: cow_user.c warning corrections
From:       Richard Weinberger <richard () nod ! at>
Date:       2011-07-21 9:18:25
Message-ID: 1311239914-8301-1-git-send-email-richard () nod ! at
[Download RAW message or body]

From: Vitaliy Ivanov <vitalivanov@gmail.com>

arch/um/drivers/cow_user.c: In function ‘absolutize':
arch/um/drivers/cow_user.c:189:7: warning: ignoring return value of ‘chdir', \
declared with attribute warn_unused_result

Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
[richard@nod.at: happens only with -D_FORTIFY_SOURCE=2]
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/drivers/cow_user.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c
index 93f227a..9cbb426 100644
--- a/arch/um/drivers/cow_user.c
+++ b/arch/um/drivers/cow_user.c
@@ -186,7 +186,11 @@ static int absolutize(char *to, int size, char *from)
 		strcat(to, "/");
 		strcat(to, from);
 	}
-	chdir(save_cwd);
+	if (chdir(save_cwd)) {
+		cow_printf("absolutize : Can't cd to '%s' - "
+			   "errno = %d\n", save_cwd, errno);
+		return -1;
+	}
 	return 0;
 }
 
-- 
1.7.6


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