[PATCH] w1: Fix number of bytes in error message

Thorsten Blum posted 1 patch 2 years, 1 month ago
drivers/w1/w1_int.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH] w1: Fix number of bytes in error message
Posted by Thorsten Blum 2 years, 1 month ago
Fix the number of bytes that failed to be allocated for a new w1 device.

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
---
 drivers/w1/w1_int.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index 3a71c5eb2f83..677e7167806c 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -34,7 +34,7 @@ static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
 	dev = kzalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL);
 	if (!dev) {
 		pr_err("Failed to allocate %zd bytes for new w1 device.\n",
-			sizeof(struct w1_master));
+			sizeof(struct w1_master) + sizeof(struct w1_bus_master));
 		return NULL;
 	}
 
-- 
2.45.0
Re: [PATCH] w1: Fix number of bytes in error message
Posted by Krzysztof Kozlowski 2 years, 1 month ago
On 13/05/2024 17:43, Thorsten Blum wrote:
> Fix the number of bytes that failed to be allocated for a new w1 device.
> 
> Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
> ---
>  drivers/w1/w1_int.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
> index 3a71c5eb2f83..677e7167806c 100644
> --- a/drivers/w1/w1_int.c
> +++ b/drivers/w1/w1_int.c
> @@ -34,7 +34,7 @@ static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
>  	dev = kzalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL);
>  	if (!dev) {
>  		pr_err("Failed to allocate %zd bytes for new w1 device.\n",
> -			sizeof(struct w1_master));
> +			sizeof(struct w1_master) + sizeof(struct w1_bus_master));

No, instead error message should be dropped. Core handles printing
memory allocation failures.

Best regards,
Krzysztof
Re: [PATCH] w1: Fix number of bytes in error message
Posted by Thorsten Blum 2 years, 1 month ago
On 27. May 2024, at 13:51, Krzysztof Kozlowski <krzk@kernel.org> wrote:
> On 13/05/2024 17:43, Thorsten Blum wrote:
>> Fix the number of bytes that failed to be allocated for a new w1 device.
>> 
>> Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
>> ---
>> drivers/w1/w1_int.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
>> index 3a71c5eb2f83..677e7167806c 100644
>> --- a/drivers/w1/w1_int.c
>> +++ b/drivers/w1/w1_int.c
>> @@ -34,7 +34,7 @@ static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
>> dev = kzalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL);
>> if (!dev) {
>> pr_err("Failed to allocate %zd bytes for new w1 device.\n",
>> - sizeof(struct w1_master));
>> + sizeof(struct w1_master) + sizeof(struct w1_bus_master));
> 
> No, instead error message should be dropped. Core handles printing
> memory allocation failures.

Ok, I'll submit a v2 shortly.