Re: [PATCH] efi/apple-properties: Delete an error message for a failed memory allocation in unmarshal_devices()
On Tue, 2018-02-13 at 19:40 +0100, Lukas Wunner wrote: > On Tue, Feb 13, 2018 at 06:00:26PM +0100, SF Markus Elfring wrote: > > --- a/drivers/firmware/efi/apple-properties.c > You didn't cc me on your submission even though I'm the author of > 99% of this file. Please make an effort prior to submission to > identify interested parties. If you want to receive patches for this file, even if you are not a maintainer or an upstream path, you should add yourself as a reviewer to the MAINTAINERS file like: APPLE EFI PROPERTIES R: Lukas Wunner F: drivers/firmware/efi/apple-properties.c -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH] efi/apple-properties: Delete an error message for a failed memory allocation in unmarshal_devices()
On Tue, Feb 13, 2018 at 06:00:26PM +0100, SF Markus Elfring wrote: > Omit an extra message for a memory allocation failure in this function. [snip] > --- a/drivers/firmware/efi/apple-properties.c > +++ b/drivers/firmware/efi/apple-properties.c > @@ -158,10 +158,8 @@ static int __init unmarshal_devices(struct > properties_header *properties) > > entry = kcalloc(dev_header->prop_count + 1, sizeof(*entry), > GFP_KERNEL); > - if (!entry) { > - dev_err(dev, "cannot allocate properties\n"); > + if (!entry) > goto skip_device; > - } > > unmarshal_key_value_pairs(dev_header, dev, ptr, entry); > if (!entry[0].name) While the allocator does print an error when allocations fail, it may not be immediately apparent to the user what the *consequences* are. In this case, the consequence is that the device properties will not be available for consumption by drivers and they may fail to probe or behave in entirely unexpected ways. Hence I deliberately printed an error message here so that the user can make the connection between erratic behavior of drivers later on and the memory allocation error here. You didn't cc me on your submission even though I'm the author of 99% of this file. Please make an effort prior to submission to identify interested parties. Lukas -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH] efi/apple-properties: Delete an error message for a failed memory allocation in unmarshal_devices()
From: Markus Elfring Date: Tue, 13 Feb 2018 17:52:10 +0100 Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring --- drivers/firmware/efi/apple-properties.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/firmware/efi/apple-properties.c b/drivers/firmware/efi/apple-properties.c index 9f6bcf173b0e..f5f3159df4d5 100644 --- a/drivers/firmware/efi/apple-properties.c +++ b/drivers/firmware/efi/apple-properties.c @@ -158,10 +158,8 @@ static int __init unmarshal_devices(struct properties_header *properties) entry = kcalloc(dev_header->prop_count + 1, sizeof(*entry), GFP_KERNEL); - if (!entry) { - dev_err(dev, "cannot allocate properties\n"); + if (!entry) goto skip_device; - } unmarshal_key_value_pairs(dev_header, dev, ptr, entry); if (!entry[0].name) -- 2.16.1 -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html