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nand: Fix set_dev checks for no device

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If we do nand device 0 command in u-boot on a device that has NAND support
enabled but no NAND chip, we can get data abort at least on omaps.

Fix the issue by replacing the check with nand_info[dev] as
suggested by Scott Wood. The check for name existed before because before
the array-to-pointer conversion there was no way to directly test
nand_info[dev] for emptiness.

Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2016-08-24 09:46:32 -07:00 committed by Tom Rini
parent c21fc7e223
commit 1cfce74fe5
1 changed files with 1 additions and 2 deletions
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3
cmd/nand.c
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@ -115,8 +115,7 @@ free_dat:
static int set_dev(int dev)
{
if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE ||
!nand_info[dev]->name) {
if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[dev]) {
puts("No such device\n");
return -1;
}