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efibc: Report more information in the error messages

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Report the name of the EFI variable if the value size is too large,
or if efibc_set_variable() fails to allocate the 'struct efivar_entry'
object.

If efibc_set_variable() fails because the 'size' value is too
large, it also reports this value in the error message.

Reported-by: Robert Elliott <[email protected]>
Signed-off-by: Jeremy Compostella <[email protected]>
Signed-off-by: Matt Fleming <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
[ Minor readability edits. ]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Compostella, Jeremy 2016-06-25 08:20:24 +01:00 • committed by Ingo Molnar
commit 5356c32742
1 changed files with 2 additions and 2 deletions
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4
drivers/firmware/efi/efibc.c
View file

@ -37,13 +37,13 @@ static int efibc_set_variable(const char *name, const char *value)
size_t size = (strlen(value) + 1) * sizeof(efi_char16_t);
if (size > sizeof(entry->var.Data)) {
pr_err("value is too large");
pr_err("value is too large (%zu bytes) for '%s' EFI variable\n", size, name);
return -EINVAL;
}
entry = kmalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
pr_err("failed to allocate efivar entry");
pr_err("failed to allocate efivar entry for '%s' EFI variable\n", name);
return -ENOMEM;
}