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um: random: Don't initialise hwrng struct with zero

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[ Upstream commit 9e70cbd11b ]

Initialising the hwrng struct with zeros causes a
compile-time sparse warning:

 $ ARCH=um make -j10 W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
 ...
 CHECK   arch/um/drivers/random.c
 arch/um/drivers/random.c:31:31: sparse: warning: Using plain integer as NULL pointer

Fix the warning by not initialising the hwrng struct
with zeros as it is initialised anyway during module
init.

Fixes: 72d3e093af ("um: random: Register random as hwrng-core device")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christopher Obbard <chris.obbard@collabora.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christopher Obbard 2022-06-23 09:58:42 +01:00 • committed by Justin Hammond
parent 34c31bcdb0
commit 9614042e92
1 changed files with 1 additions and 1 deletions
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2
arch/um/drivers/random.c
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@ -28,7 +28,7 @@
* protects against a module being loaded twice at the same time.
*/
static int random_fd = -1;
static struct hwrng hwrng = { 0, };
static struct hwrng hwrng;
static DECLARE_COMPLETION(have_data);
static int rng_dev_read(struct hwrng *rng, void *buf, size_t max, bool block)