media: pt1: fix logic when pt1_nr_tables is zero or negative

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pt1_nr_tables is a modprobe parameter. The way the logic
handles it, it can't be negative. However, user can
set it to zero.

If set to zero, however, it will cause troubles at
pt1_init_tables(), as reported by smatch:
	drivers/media/pci/pt1/pt1.c:468 pt1_init_tables() error: uninitialized symbol 'first_pfn'.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

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This commit is contained in:

Mauro Carvalho Chehab 2017-11-01 17:05:52 -04:00

parent 29236349aa

commit e639c86955

1 changed files with 9 additions and 8 deletions

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17

drivers/media/pci/pt1/pt1.c

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