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mtd: rawnand: lpc32xx_slc: clean the probe function 

Before fixing the error path of the probe function, fix the style of the
entire function and particularly the goto labels: they should indicate
what the next cleanup to do is.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This commit is contained in:
Miquel Raynal 2018-04-21 20:00:42 +02:00 committed by Boris Brezillon
parent 838c07b05b
commit e0ea20bfb4
1 changed files with 14 additions and 12 deletions
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26
drivers/mtd/nand/raw/lpc32xx_slc.c
View File

@ -831,11 +831,11 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
if (IS_ERR(host->clk)) {
dev_err(&pdev->dev, "Clock failure\n");
res = -ENOENT;
goto err_exit1;
goto enable_wp;
}
res = clk_prepare_enable(host->clk);
if (res)
goto err_exit1;
goto enable_wp;
/* Set NAND IO addresses and command/ready functions */
chip->IO_ADDR_R = SLC_DATA(host->io_base);
@ -874,19 +874,19 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
GFP_KERNEL);
if (host->data_buf == NULL) {
res = -ENOMEM;
goto err_exit2;
goto unprepare_clk;
}
res = lpc32xx_nand_dma_setup(host);
if (res) {
res = -EIO;
goto err_exit2;
goto unprepare_clk;
}
/* Find NAND device */
res = nand_scan_ident(mtd, 1, NULL);
if (res)
goto err_exit3;
goto release_dma;
/* OOB and ECC CPU and DMA work areas */
host->ecc_buf = (uint32_t *)(host->data_buf + LPC32XX_DMA_DATA_SIZE);
@ -920,21 +920,23 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
*/
res = nand_scan_tail(mtd);
if (res)
goto err_exit3;
goto release_dma;
mtd->name = "nxp_lpc3220_slc";
res = mtd_device_register(mtd, host->ncfg->parts,
host->ncfg->num_parts);
if (!res)
return res;
if (res)
goto release_nand;
return 0;
release_nand:
nand_release(mtd);
err_exit3:
release_dma:
dma_release_channel(host->dma_chan);
err_exit2:
unprepare_clk:
clk_disable_unprepare(host->clk);
err_exit1:
enable_wp:
lpc32xx_wp_enable(host);
return res;