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| author | Jiri Slaby <jslaby@suse.cz> | 2021-06-18 08:14:59 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-18 13:10:02 +0200 |
| commit | ad1c92ff6ee948584603ef2e004704cfceb899a4 (patch) | |
| tree | 52b94329f8ac33f0b3b0b61aa58e5e0494f7a3d5 /drivers | |
| parent | f8b6b327aa73dd69577abd4e164447a9cc124315 (diff) | |
| download | linux-stable-ad1c92ff6ee948584603ef2e004704cfceb899a4.tar.gz linux-stable-ad1c92ff6ee948584603ef2e004704cfceb899a4.tar.bz2 linux-stable-ad1c92ff6ee948584603ef2e004704cfceb899a4.zip | |
mxser: alloc only needed # of ports
Many boards have only 2 ports. But we always allocate 8 ports (struct
mxser_port) in each struct mxser_board.
Switch this to an empty/variable sized array ([]) and allocate the
needed number of ports using struct_size helper in ->probe.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210618061516.662-54-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/mxser.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c index 0e99225e260f..81e2b72fca3f 100644 --- a/drivers/tty/mxser.c +++ b/drivers/tty/mxser.c @@ -275,7 +275,7 @@ struct mxser_board { enum mxser_must_hwid must_hwid; speed_t max_baud; - struct mxser_port ports[MXSER_PORTS_PER_BOARD]; + struct mxser_port ports[]; }; static DECLARE_BITMAP(mxser_boards, MXSER_BOARDS); @@ -1923,7 +1923,8 @@ static int mxser_probe(struct pci_dev *pdev, goto err; } - brd = devm_kzalloc(&pdev->dev, sizeof(*brd), GFP_KERNEL); + brd = devm_kzalloc(&pdev->dev, struct_size(brd, ports, nports), + GFP_KERNEL); if (!brd) goto err; |