Message ID | 20190530235348.j3orly64wadtjydx@valkyrie-prime.rpi (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Thu, 30 May 2019 19:53:58 -0400 (EDT) Date: Thu, 30 May 2019 23:53:48 +0000 From: Benjamin Sherman <benjamin@bensherman.io> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Subject: [PATCH] staging: mt7621-dma: sizeof via pointer dereference Message-ID: <20190530235348.j3orly64wadtjydx@valkyrie-prime.rpi> MIME-Version: 1.0 Content-Disposition: inline X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190530_165403_699274_30D886A4 X-CRM114-Status: GOOD ( 10.06 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <linux-mediatek.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-mediatek>, <mailto:linux-mediatek-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-mediatek/> List-Post: <mailto:linux-mediatek@lists.infradead.org> List-Help: <mailto:linux-mediatek-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-mediatek>, <mailto:linux-mediatek-request@lists.infradead.org?subject=subscribe> Cc: Matthias Brugger <matthias.bgg@gmail.com>, devel@driverdev.osuosl.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; 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staging: mt7621-dma: sizeof via pointer dereference
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diff --git a/drivers/staging/mt7621-dma/mtk-hsdma.c b/drivers/staging/mt7621-dma/mtk-hsdma.c index a58725dd2611..60db06768c8a 100644 --- a/drivers/staging/mt7621-dma/mtk-hsdma.c +++ b/drivers/staging/mt7621-dma/mtk-hsdma.c @@ -468,7 +468,7 @@ static struct dma_async_tx_descriptor *mtk_hsdma_prep_dma_memcpy( if (len <= 0) return NULL; - desc = kzalloc(sizeof(struct mtk_hsdma_desc), GFP_ATOMIC); + desc = kzalloc(sizeof(*desc), GFP_ATOMIC); if (!desc) { dev_err(c->device->dev, "alloc memcpy decs error\n"); return NULL;
Pass the size of a struct into kzalloc by pointer dereference. This complies with the Linux kernel coding style and removes the possibility for a bug if the pointer's type is changed. Signed-off-by: Benjamin Sherman <benjamin@bensherman.io> --- drivers/staging/mt7621-dma/mtk-hsdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)