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thunderbolt: dma_port: kmalloc_array + kzalloc to flex

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Use a single allocation with a flexible array member. Simplifies
allocation and freeing.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Rosen Penev
2026-03-13 14:41:37 -07:00
committed by Mika Westerberg
parent f791145abc
commit 500e54d449
1 changed files with 3 additions and 12 deletions
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15
drivers/thunderbolt/dma_port.c
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@@ -55,7 +55,7 @@ struct tb_dma_port {
struct tb_switch *sw;
u8 port;
u32 base;
u8 *buf;
u8 buf[];
};
/*
@@ -209,16 +209,10 @@ struct tb_dma_port *dma_port_alloc(struct tb_switch *sw)
if (port < 0)
return NULL;
dma = kzalloc_obj(*dma);
dma = kzalloc_flex(*dma, buf, MAIL_DATA_DWORDS);
if (!dma)
return NULL;
dma->buf = kmalloc_array(MAIL_DATA_DWORDS, sizeof(u32), GFP_KERNEL);
if (!dma->buf) {
kfree(dma);
return NULL;
}
dma->sw = sw;
dma->port = port;
dma->base = DMA_PORT_CAP;
@@ -232,10 +226,7 @@ struct tb_dma_port *dma_port_alloc(struct tb_switch *sw)
*/
void dma_port_free(struct tb_dma_port *dma)
{
if (dma) {
kfree(dma->buf);
kfree(dma);
}
kfree(dma);
}
static int dma_port_wait_for_completion(struct tb_dma_port *dma,