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efi/efi_test: Use memdup_user() as a cleanup
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 <ivan.hu@canonical.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20161018143318.15673-7-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
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1 changed files with 3 additions and 7 deletions
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@ -265,14 +265,10 @@ static long efi_runtime_set_variable(unsigned long arg)
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return rv;
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}
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data = kmalloc(setvariable.data_size, GFP_KERNEL);
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if (!data) {
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data = memdup_user(setvariable.data, setvariable.data_size);
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if (IS_ERR(data)) {
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kfree(name);
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return -ENOMEM;
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}
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if (copy_from_user(data, setvariable.data, setvariable.data_size)) {
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rv = -EFAULT;
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goto out;
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return PTR_ERR(data);
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}
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status = efi.set_variable(name, &vendor_guid,
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