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From: <Oleg.Karfich@wago.com>
To: barebox@lists.infradead.org
Cc: Oleg.Karfich@wago.com
Subject: [PATCH] commands: of_property: do not free data in general
Date: Mon, 27 Aug 2018 13:57:48 +0000	[thread overview]
Message-ID: <1535378254-2593-1-git-send-email-oleg.karfich@wago.com> (raw)

With commit 748d1b8 the function do_of_property_set_now is introduced. With this
commit an unwanted free(data) is added wich leads to that an free on the value
is done that is previously set to the property. As a consequence the command
of_dump reads freed data an printis the value as hex. Fix this by moving
free(data) to the right place like before the above commit.

Signed-off-by: Oleg Karfich <oleg.karfich@wago.com>
---
 commands/of_property.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/commands/of_property.c b/commands/of_property.c
index 8ce12e5..ea32e51 100644
--- a/commands/of_property.c
+++ b/commands/of_property.c
@@ -275,10 +275,12 @@ static int do_of_property_set_now(struct device_node *root, const char *path,
 		pp->value_const = NULL;
 
 		/* limit property data to the actual size */
-		if (len)
+		if (len) {
 			pp->value = xrealloc(data, len);
-		else
+		} else {
 			pp->value = NULL;
+			free(data);
+		}
 
 		pp->length = len;
 	} else {
@@ -374,7 +376,6 @@ static int do_of_property(int argc, char *argv[])
 				free(data);
 		} else {
 			ret = do_of_property_set_now(NULL, path, propname, data, len);
-			free(data);
 		}
 
 		return ret;
-- 
2.7.4

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             reply	other threads:[~2018-08-27 13:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-27 13:57 Oleg.Karfich [this message]
2018-08-27 14:57 ` Baeuerle, Florian
2018-08-28  6:53   ` Oleg.Karfich

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