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efi/efi_test: Use memdup_user() as a cleanup

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Fix coccicheck warning which recommends to use memdup_user().

This patch fixes the following coccicheck warnings:

  drivers/firmware/efi/test/efi_test.c:269:8-15: WARNING opportunity for memdup_user

Signed-off-by: Ivan Hu <[email protected]>
Signed-off-by: Matt Fleming <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Ivan Khoronzhuk <[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]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Ivan Hu 2016-10-18 15:33:16 +01:00 • committed by Ingo Molnar
commit c208ed916e
1 changed files with 3 additions and 7 deletions
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10
drivers/firmware/efi/test/efi_test.c
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@ -265,14 +265,10 @@ static long efi_runtime_set_variable(unsigned long arg)
return rv;
}
data = kmalloc(setvariable.data_size, GFP_KERNEL);
if (!data) {
data = memdup_user(setvariable.data, setvariable.data_size);
if (IS_ERR(data)) {
kfree(name);
return -ENOMEM;
}
if (copy_from_user(data, setvariable.data, setvariable.data_size)) {
rv = -EFAULT;
goto out;
return PTR_ERR(data);
}
status = efi.set_variable(name, &vendor_guid,