From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- drivers/dma/switchtec_dma.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers/dma') diff --git a/drivers/dma/switchtec_dma.c b/drivers/dma/switchtec_dma.c index c133535d3765..c8e2169877e9 100644 --- a/drivers/dma/switchtec_dma.c +++ b/drivers/dma/switchtec_dma.c @@ -1056,7 +1056,7 @@ static int switchtec_dma_chan_init(struct switchtec_dma_dev *swdma_dev, int se_buf_len, irq, rc; struct dma_chan *chan; - swdma_chan = kzalloc_obj(*swdma_chan, GFP_KERNEL); + swdma_chan = kzalloc_obj(*swdma_chan); if (!swdma_chan) return -ENOMEM; @@ -1162,8 +1162,7 @@ static int switchtec_dma_chans_enumerate(struct switchtec_dma_dev *swdma_dev, struct dma_device *dma = &swdma_dev->dma_dev; int base, cnt, rc, i; - swdma_dev->swdma_chans = kcalloc(chan_cnt, sizeof(*swdma_dev->swdma_chans), - GFP_KERNEL); + swdma_dev->swdma_chans = kzalloc_objs(*swdma_dev->swdma_chans, chan_cnt); if (!swdma_dev->swdma_chans) return -ENOMEM; @@ -1222,7 +1221,7 @@ static int switchtec_dma_create(struct pci_dev *pdev) /* * Create the switchtec dma device */ - swdma_dev = kzalloc_obj(*swdma_dev, GFP_KERNEL); + swdma_dev = kzalloc_obj(*swdma_dev); if (!swdma_dev) return -ENOMEM; -- cgit