sata_dwc_460ex: fix resource leak on error path
DMA mapped IO should be unmapped on the error path in probe() and
unconditionally on remove().
Fixes: 62936009f3
([libata] Add 460EX on-chip SATA driver, sata_dwc_460ex)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Родитель
c7fa056c82
Коммит
4aaa71873d
|
@ -797,7 +797,7 @@ static int dma_dwc_init(struct sata_dwc_device *hsdev, int irq)
|
|||
if (err) {
|
||||
dev_err(host_pvt.dwc_dev, "%s: dma_request_interrupts returns"
|
||||
" %d\n", __func__, err);
|
||||
goto error_out;
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Enabe DMA */
|
||||
|
@ -808,11 +808,6 @@ static int dma_dwc_init(struct sata_dwc_device *hsdev, int irq)
|
|||
sata_dma_regs);
|
||||
|
||||
return 0;
|
||||
|
||||
error_out:
|
||||
dma_dwc_exit(hsdev);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sata_dwc_scr_read(struct ata_link *link, unsigned int scr, u32 *val)
|
||||
|
@ -1662,7 +1657,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
|
|||
char *ver = (char *)&versionr;
|
||||
u8 *base = NULL;
|
||||
int err = 0;
|
||||
int irq, rc;
|
||||
int irq;
|
||||
struct ata_host *host;
|
||||
struct ata_port_info pi = sata_dwc_port_info[0];
|
||||
const struct ata_port_info *ppi[] = { &pi, NULL };
|
||||
|
@ -1725,7 +1720,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
|
|||
if (irq == NO_IRQ) {
|
||||
dev_err(&ofdev->dev, "no SATA DMA irq\n");
|
||||
err = -ENODEV;
|
||||
goto error_out;
|
||||
goto error_iomap;
|
||||
}
|
||||
|
||||
/* Get physical SATA DMA register base address */
|
||||
|
@ -1734,14 +1729,16 @@ static int sata_dwc_probe(struct platform_device *ofdev)
|
|||
dev_err(&ofdev->dev, "ioremap failed for AHBDMA register"
|
||||
" address\n");
|
||||
err = -ENODEV;
|
||||
goto error_out;
|
||||
goto error_iomap;
|
||||
}
|
||||
|
||||
/* Save dev for later use in dev_xxx() routines */
|
||||
host_pvt.dwc_dev = &ofdev->dev;
|
||||
|
||||
/* Initialize AHB DMAC */
|
||||
dma_dwc_init(hsdev, irq);
|
||||
err = dma_dwc_init(hsdev, irq);
|
||||
if (err)
|
||||
goto error_dma_iomap;
|
||||
|
||||
/* Enable SATA Interrupts */
|
||||
sata_dwc_enable_interrupts(hsdev);
|
||||
|
@ -1759,9 +1756,8 @@ static int sata_dwc_probe(struct platform_device *ofdev)
|
|||
* device discovery process, invoking our port_start() handler &
|
||||
* error_handler() to execute a dummy Softreset EH session
|
||||
*/
|
||||
rc = ata_host_activate(host, irq, sata_dwc_isr, 0, &sata_dwc_sht);
|
||||
|
||||
if (rc != 0)
|
||||
err = ata_host_activate(host, irq, sata_dwc_isr, 0, &sata_dwc_sht);
|
||||
if (err)
|
||||
dev_err(&ofdev->dev, "failed to activate host");
|
||||
|
||||
dev_set_drvdata(&ofdev->dev, host);
|
||||
|
@ -1770,7 +1766,8 @@ static int sata_dwc_probe(struct platform_device *ofdev)
|
|||
error_out:
|
||||
/* Free SATA DMA resources */
|
||||
dma_dwc_exit(hsdev);
|
||||
|
||||
error_dma_iomap:
|
||||
iounmap((void __iomem *)host_pvt.sata_dma_regs);
|
||||
error_iomap:
|
||||
iounmap(base);
|
||||
error_kmalloc:
|
||||
|
@ -1791,6 +1788,7 @@ static int sata_dwc_remove(struct platform_device *ofdev)
|
|||
/* Free SATA DMA resources */
|
||||
dma_dwc_exit(hsdev);
|
||||
|
||||
iounmap((void __iomem *)host_pvt.sata_dma_regs);
|
||||
iounmap(hsdev->reg_base);
|
||||
kfree(hsdev);
|
||||
kfree(host);
|
||||
|
|
Загрузка…
Ссылка в новой задаче